will have been sleeping

• future perfect progressive

  future perfect progressive

  Used to describe a continuous action that will progress up until a designated point of completion in the future.

  of sleep.
  sleep

  verb (used without object)

  to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake.

Related Words

• bed down
• doze
• fall asleep
• languish
• relax
• snooze